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Finding the Fourth Proportional to 300,955.36, 415,031.88 and 180,077.44

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Solution

The fourth proportional to 300,955.36, 415,031.88 and 180,077.44 is: 248,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,955.36 : 415,031.88 = 180,077.44 : x
  2. Step 2: Convert to fraction form
    300,955.36/415,031.88 = 180,077.44/x
  3. Step 3: Cross multiply
    300,955.36x = 415,031.88 × 180,077.44
  4. Step 4: Simplify right side
    300,955.36x = 74,737,878,468.79
  5. Step 5: Solve for x
    x = 74,737,878,468.79/300,955.36
  6. Step 6: Final answer
    x = 248,335.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.